Within the framework of meson exchange theory,the N-N interaction is derived by a classical field method from a chiral σ-ω model.The nuclear potential derived is similar to the ordinary one boson exchange potential.
In the LCNO theory,a simple analytic approximate expression has been derived for the exchange potential which has definite value at R=0 and can be applied to the whole region.
Theαtransfer effect on sub-barrier fusion is calculated for^(16)O+^(148)Sm system by using the linear combination of nuclear orbits theory.The coupling between elastic scattering channel andαtransfer reaction channe...Theαtransfer effect on sub-barrier fusion is calculated for^(16)O+^(148)Sm system by using the linear combination of nuclear orbits theory.The coupling between elastic scattering channel andαtransfer reaction channel causes the enhancement of the fusion cross section at sub-barrier energies.展开更多
In order to reduce the systematic uncertainties caused by the sequential injection in AMS measurement of ^(182)Hf,a technique for instantaneous monitoring of off-axis∑HfF_5^- current was developed in the AMS laborato...In order to reduce the systematic uncertainties caused by the sequential injection in AMS measurement of ^(182)Hf,a technique for instantaneous monitoring of off-axis∑HfF_5^- current was developed in the AMS laboratory at China Institute of Atomic Energy(CIAE).The stability and reliability of this method have been experimentally verified.As a result,the accuracy for AMS measurement of^(182)Hf was significantly improved.展开更多
Purpose Back-n is a white neutron beamline at China spallation neutron source,which was established in the year of 2018.It is a powerful facility for nuclear data measurement,neutron detector calibration,and radiation...Purpose Back-n is a white neutron beamline at China spallation neutron source,which was established in the year of 2018.It is a powerful facility for nuclear data measurement,neutron detector calibration,and radiation effect research.Method A series of detectors were built for different experiments,including beam monitoring,beam profile measurement,neutron induced secondaries(fission fragments,light charged particles and gamma)cross section measurement,and neutron resonance radiography,etc.A common digitization electronics and a cluster-based DAQ were developed for these detector systems.Most detectors have been employed at Back-n and serviced for experiments from the beginning of the beamline running.Results and conclusion As an overview of detectors of Back-n,the details of the detector design and the experiment performing are described in this paper.Some developing systems,e.g.,MTPC and B-MCP,are also included.展开更多
文摘Within the framework of meson exchange theory,the N-N interaction is derived by a classical field method from a chiral σ-ω model.The nuclear potential derived is similar to the ordinary one boson exchange potential.
文摘In the LCNO theory,a simple analytic approximate expression has been derived for the exchange potential which has definite value at R=0 and can be applied to the whole region.
文摘Theαtransfer effect on sub-barrier fusion is calculated for^(16)O+^(148)Sm system by using the linear combination of nuclear orbits theory.The coupling between elastic scattering channel andαtransfer reaction channel causes the enhancement of the fusion cross section at sub-barrier energies.
基金supported by the National Natural Science Foundation of China under Grant No 10705054
文摘In order to reduce the systematic uncertainties caused by the sequential injection in AMS measurement of ^(182)Hf,a technique for instantaneous monitoring of off-axis∑HfF_5^- current was developed in the AMS laboratory at China Institute of Atomic Energy(CIAE).The stability and reliability of this method have been experimentally verified.As a result,the accuracy for AMS measurement of^(182)Hf was significantly improved.
基金support provided by the National KeyR&DProgram of China(Grant No.2016YFA0401600).
文摘Purpose Back-n is a white neutron beamline at China spallation neutron source,which was established in the year of 2018.It is a powerful facility for nuclear data measurement,neutron detector calibration,and radiation effect research.Method A series of detectors were built for different experiments,including beam monitoring,beam profile measurement,neutron induced secondaries(fission fragments,light charged particles and gamma)cross section measurement,and neutron resonance radiography,etc.A common digitization electronics and a cluster-based DAQ were developed for these detector systems.Most detectors have been employed at Back-n and serviced for experiments from the beginning of the beamline running.Results and conclusion As an overview of detectors of Back-n,the details of the detector design and the experiment performing are described in this paper.Some developing systems,e.g.,MTPC and B-MCP,are also included.
